pyridazine

noun

py·​rid·​azine

pīˈridəˌzēn,

ˌpirəˈdaˌz-,

-zə̇n

1

: a liquid feeble heterocyclic base C₄H₄N₂; 1,2-diazine

called also ortho-diazine

2

: a derivative of pyridazine

Word History

Etymology

International Scientific Vocabulary pyrid- + azine

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!